Abstract: The invention concerns a method comprising the steps of grinding, fine grinding, and polishing a surface of an optical article made of transparent thermoplastic material, one of the steps of fine grinding or polishing consisting of treating the surface with a solvent or a mixture of solvents. The invention is applicable to lenses for spectacles.

Abstract: The present invention provides a method for manufacturing pitch-based carbon fiber by melt-spinning a mesophase pitch having optical anisotropy by using nozzles each equipped with an introduction hole entry portion, an introduction hole, an approach portion, and a discharge hole, and then applying thereto infusibilization, carbonization, or graphitization, wherein the mesophase pitch is passed through a plurality of contraction holes disposed in a substantially straight line in the introduction hole entry portion of each nozzle, then expanded in the introduction hole, and thereafter contracted in the approach portion and then spun by being passed through the discharge hole.

Abstract: Calender with a roll stack and process for arranging rolls in a roll stack of a calender, the calender comprising two end rolls in a press plane and a plurality of middle rolls between the two end rolls. At least one of the middle rolls has an elastic surface and has a displacement (x) relative to the press plane, the size of the displacement (x) being selected based on a wavelength of a critical natural frequency within the roll stack. The end rolls and the at least one middle roll define two nips therebetween, the displacement (x) effecting a difference in distance of a fraction of a wavelength on a surface of the at least one middle roll between the two nips. An adjusting device adjusts the displacement of the at least one middle roll on the basis of a preset displacement (x), which depends on the wavelength.

Abstract: An apparatus for fabricating fiber reinforced plastic structures is disclosed. In detail, the apparatus includes a mold surface upon which can be supported a lay-up of one or more layers of a fibrous material, and over which can be placed a fluid impervious outer sheet with an inlet port and having its edges marginally sealed upon the mold surface to form a chamber. A vacuum outlet is connected to the chamber for drawing a vacuum therefrom. A resin distribution system is positioned between the lay-up and the fluid impervious sheet. The resin distribution system includes a distribution sheet for receiving resin from the inlet port and at least one flat resin distribution line connected to the inlet port.

Abstract: An apparatus for fabricating fiber reinforced plastic structures is disclosed. In detail, the apparatus includes a mold surface upon which can be supported a lay-up of one or more layers of a fibrous material, and over which can be placed a fluid impervious outer sheet with an inlet port and having its edges marginally sealed upon the mold surface to form a chamber. A vacuum outlet is connected to the chamber for drawing a vacuum there from. A resin distribution is positioned between the lay-up and the fluid impervious sheet. The resin distribution system includes a resin distribution medium for receiving resin from the inlet port and a resin containment layer between the resin distribution medium and lay-up for preventing resin flowing from the resin distribution medium into the lay-up until the resin distribution medium is substantially filled with resin.

Abstract: The present invention is a continuous in-line compounding and extrusion system that does not require pre-dried wood flour or pelletized feed stock of cellulosic/polymer composite materials in order to produce net shapes from cellulosic/polymer composite materials. An exemplary embodiment of the present invention utilizes automated loss-in-weight feeders to dispense wood flour and all of the other cellulosic/polymer composite materials into a compounder. The compounder blends the cellulosic/polymer composite materials into a composite melt. The composite melt is continuously devolitalized as it travels through the compounder, a transition chute, and a finish extruder. The composite melt is then forced through a profile die which is fitted to the finish extruder in order to achieve a net shape.

Abstract: An method for producing a material useful for forming a component for an electrochemical fuel cell is provided. More particularly, the component is formed of a sheet of a compressed mass of expanded graphite particles. The component is treated with a water resistant additive sufficient to provide utility as a component in an electrochemical fuel cell. Preferably, the water resistant additive is a fluoropolymer material. More preferably, the water resistant additive is a polytetrafluoroethylene material. The treatment preferably occurs by coating and/or impregnating the water resistant material in the sheet of graphite particles.

Abstract: A rustication for preparing reveal bands in a precast panel surface. The rustication is made from a one piece elongate body of extruded foam and comprises an upper surface, a lower surface and laterally-spaced sidewall surfaces that extend between the upper and lower surfaces. The lower surface defines a base plane. One or more downward-extending edges that project below the lower surface base plane are included such that they can bend under the application of a load, such as when concrete is poured around it to form the precast panel. Under such a load, the edge scrapes along the top of a panel-forming surface so that an enhanced sealing engagement between the panel-forming surface and the rustication is effected. The rustication can further include a plurality of longitudinally-spaced apertures that extend from the upper surface to the lower surface to facilitate the securing of the rustication to the panel-forming surface, thereby precluding rustication shift once the concrete is poured.

Abstract: A toner extruder for the preparation of a toner resin extrudate from a resin is provided. The extruder includes a housing defining a housing aperture and a resin inlet opening in the housing. The extruder also includes a conveyor for conveying the resin through the housing aperture. A lead-in gap at the resin inlet opening collects prematurely melted base resin and holds it for take-up by the conveyor, thus preventing fusing of the resin on the conveyor and avoiding clumping. The extruder can further include a member adjacent the resin inlet opening for inhibiting the heat transfer from the housing and/or the conveyor to the resin at the opening. The flow of resin adjacent the opening is thus improved.

Abstract: The present invention provides a method for industrially stably producing a stretched polyamide film having uniform properties at a high speed. The polyamide film production method comprises the steps of: extruding a molten polyamide resin from a die into a sheet form on a rotary cooling roll having a roughened surface; pressing the sheet against the surface of the cooling roll with an air layer being present between the cooling roll and the sheet by blowing air onto the sheet from an air knife apparatus for cooling the sheet, the air layer having a widthwise thickness distribution such that an average air layer thickness Te in lateral edge regions of the sheet is greater than an average air layer thickness Tc in a middle region of the sheet; and biaxially stretching the sheet.

Abstract: A shaped rubber body with improved uniformity in terms of weight and/or physical properties is produced by extruding a rubber strip by a positive displacement extruding system that includes, as seen from an upstream side of the rubber strip, a screw extruder unit, a gear pump unit and an extrusion head unit with an extrusion nozzle, which are connected in series with each other. The rubber strip is fed to a rotating support along a substantially straight passage extending from the screw extruder unit to the extrusion nozzle of the extrusion head unit, passed through a gap defined between a pair of pressure roll, and applied onto an outer surface of the support by one of the pressure rolls.

Abstract: The invention relates to a device and method for melt spinning and cooling a filament bundle. To this end, the device comprises a spinning device with an annular spinneret for extruding the filament bundle as well as a cooling unit arranged below the spinning device. The cooling unit comprises a holding device and a coolant dispersing head that is connected to said holding device. In an operating position, said coolant dispersing head is substantially centered relative to the spinneret with contact between the spinning device and the holding device. The coolant dispersing head can be guided into a standby position at a distance from the spinneret. According to the invention, a movable shielding means is arranged laterally of the coolant dispersing head and can be moved between an initial position laterally of the coolant dispersing head and a shielding position directly underneath the spinneret.

Abstract: A method for manufacturing a mold component having a conformal thermal management system comprises forming a first mold segment and a second mold segment, each comprising a surface having a profile defined by the surface. A channel pattern is disposed beneath the profile defined by the surface in at least one of the first mold segment and second mold segment. The first mold segment and second mold segment are aligned to form a network of channels. The first mold segment and second mold segment are joined together to form the mold component.

Abstract: A process for producing a printing form includes forming a multiplicity of blind holes opening into a surface of a spatial or three-dimensional structure of the printing form, the blind holes serving for receiving a medium therein, and providing a propellant in the printing form for assisting in expelling the medium from the blind holes. A printing form produced by the process is also provided.

Abstract: A method of mounting a mounting member onto a member to be mounted, at least one of which is resin-molded is carried out by molding the mounting member and the member to be mounted and mounting the mounting member to the member to be mounted, utilizing post-molding shrinkage. Accordingly, neither formation of fitting portions of the pivot member and the hub member nor pressing of the pivot member into the hub body is needed, whereby reels can be manufactured with high productivity.

Abstract: A method for producing a zipper for use in the production of reclosable plastic bags of the type having the zipper extending across a top end of the bag. The zipper has a first profile member and a second profile member that is interengageable with the first profile member. At bag length intervals of the zipper notches are formed by removing at least a portion of the first profile member and a portion of said second profile member. A mold is positioned about each of the notches and a molten thermoplastic material is introduced into the mold cavity filling the notch and extending beyond the notch and over the zipper top so that when the molten thermoplastic material is cooled an end stop is formed in situ at each of said notches.

Abstract: A process for manufacturing a wafer carrier including injection molding a wafer support structure. The wafer support structure has a plurality of wafer support shelves extending therefrom. The process further includes molding a wafer contact portion on each of the wafer support shelves. The wafer contact portions bond with the wafer support shelves without mechanical fasteners between the wafer contact portions and the wafer support shelves. The process also includes overmolding a shell over the wafer support structure to form the wafer carrier. The shell bonds with the wafer support structure without mechanical fasteners between the shell and the wafer support structure. The wafer contact portions define a plurality of slots for holding a plurality of wafers.

Abstract: A composite wafer carrier according to an embodiment of the present invention comprises an operative portion formed of a first thermoplastic material and a support portion formed of a second different thermoplastic material. One of the operative portion and support portion is overmolded onto the other to form a gapless hermitic interface that securely bonds the portions together. The operative portion may be a transparent window, a portion of a latching mechanism or a wafer contact portion. Preferred embodiments of the invention include wafer carriers with said features, process carriers with said features and a process for manufacturing wafer carriers with said features.

Abstract: A method of producing a sintered article of polybenzimidazole by using a polybenzimidazole resin. This method comprises, in the following order, the steps of: filling a mold with a polybenzimidazole resin; after closing the mold so that the polybenzimidazole resin can be densely packed in the mold, heating the mold to a predetermined temperature ranging from 500° C. to 600° C. without applying pressure to the mold from the outside; after increasing the pressure on the mold from 0 kg/cm2 to 50-750 kg/cm2, sintering the polybenzimidazole resin while maintaining the temperature and the pressure for 15 to 200 minutes; cooling the mold; and removing the sintered article of the polybenzimidazole resin from the mold. In this method, the polybenzimidazole resin is is brought into contact with substantially no oxygen from the beginning of the step of heating the resin to the end of the sintering step.

Abstract: A system and process for producing pressing force of an injection unit of an injection molding machine on a mold, which comprises the steps: a) actuating a linear drive unit to bring an injection device to rest on a mold; a working cylinder unit being supplied with fluid via a store during the axial displacement of the injection device until the required rest position on the mold is reached. Provision is made according to one aspect of the invention in that after reaching the rest position on the mold, a blocking element is closed and the connection within a connection unit is opened, and b) the linear drive unit is further actuated, c) a displacement piston is displaced relative to the hydraulic element, and d) increased pressure is produced in the working cylinder unit via a fluid connection in the hydraulic element to increase the contact pressure of the injection unit on the mold.

Abstract: A method and apparatus for molding a reproducible uniform concrete test cylinder using a standard concrete test cylinder mold. Concrete is poured into the concrete test cylinder mold to a point where the poured concrete extends above a top portion of the concrete test cylinder mold. A cap having at least one radial trough and at least one excretion hole is placed on the top portion of the concrete test cylinder mold. The cap is manually pressed and rotated against the top portion of the concrete test cylinder mold thereby channeling excess concrete through the radial troughs for excretion through the excretion hole in the cap. In addition, the radial trough smoothes the surface of the poured concrete within the concrete test cylinder mold. Prior to the initial set of the concrete in the concrete test cylinder mold, the cap is rotated upon the top portion of the concrete test cylinder mold in order to separate the cap from the poured concrete within the concrete test cylinder mold.

Abstract: A bladder removing apparatus for a tire vulcanizer having a movable boom swiveled on a horizontally movable platform with a flexible connecting member carried by the boom for attachment to the bladder, whereby the platform is moveable and the boom is swingable into a centered position of the bladder, upon lifting of said bladder.

Abstract: The present invention is direct to angular border on three dimensional sheet material and method of producing. This invention is producing an attractive and finely finished article.

Abstract: A process for making a composition for conversion to lyocell fiber where the process comprises pulping a raw material in a digester to provide an alkaline pulp, wherein the raw material comprises sawdust in an amount greater than 0% up to 100%; and contacting the alkaline pulp comprising cellulose and at least about 7% hemicellulose under alkaline conditions with an amount of an oxidant sufficient to reduce the average degree of polymerization of the cellulose to within the range of from about 200 to about 1100, without substantially reducing the hemicellulose content of the pulp or substantially increasing the copper number.

Abstract: A process for making lyocell fibers comprising the steps of pulping raw material in a digester to provide an alkaline pulp, wherein the raw material comprises sawdust in an amount greater than 0% up to 100%; contacting the alkaline pulp comprising cellulose and at least about 7% hemicellulose under alkaline conditions with an amount of an oxidant sufficient to reduce the average degree of polymerization of the cellulose to the range of from about 200 to about 1100 without substantially reducing the hemicellulose content or substantially increasing the copper number of the pulp; and forming fibers from the pulp.

Abstract: In the apparatus for distilling molten baths, substantially comprising a two-part vacuum tank (2), a melting crucible (5) disposed in the bottom housing part (3) of the vacuum tank and surrounded by a heating coil (4), a hat-shaped metal vapor condenser (8) held in the top housing part (6) of the vacuum tank (2), and a draining channel (10) disposed between the melting crucible (5) and the metal vapor condenser (8), a filter element (16) penetrated by a metal vapor thermometer (19) plus probe (20) is provided above the metal vapor condenser (8) in an opening (15) of the top housing part (6), wherein both the filter pot (17) surrounding the filter element (16), as well as the space (22) behind the coil, as well as the top housing part (6) are connected by separate individual vacuum lines (18, 23, 25) to a vacuum source (7).

Abstract: A coil spring assembly for use in the manufacture of bedding and seating products or the like comprising a plurality of bands of coil springs joined together with helical lacing wires. Each of the bands of coil springs is made of one piece of wire formed into a row of coil springs. The helical lacing wires are spaced inwardly from the end turns of the coil springs, thereby creating a cushioning affect on at least one surface of the product.

Abstract: A system and method of controlling engine vibration mounted within a vehicle including at least one hydraulic mount, each mount including a fluid chamber. A pair of accelerometers sense relative acceleration across the mount between the engine and the frame and generate a relative acceleration signal. A control unit is electrically connected to the accelerometers. The control unit is adapted to generate an electronic control signal in response to the relative acceleration signal. The control device is responsive to the electric control signal for controlling the damping force of the hydraulic mount. A control algorithm calibrates the control unit such that maximum vibration damping occurs at and around the engine resonance bounce frequency.

Abstract: A support frame assembly for use in the manufacture of furniture, including a pair of frame members, one or more support springs and spring anchors for coupling the springs to the frames. The springs function as a load absorbing resilient base for padding and/or cushioning used in the seating construction. The spring anchors are used in securing each end of the springs under tension to a frame member. Each spring anchor is formed as a generally P-shaped clip, having a flange portion which merges into and is integral with a loop portion which defines a bore extending therethrough. The loop portion is formed as a continuous fully closed loop to provide the anchor clip with increased structural integrity and to better resist deformation upon the application of load forces to the spring. The flange portion is secured directly to the frame member in a position so that the loop portion projects forwardly past an edge of the frame member closest towards the other opposing frame member.

Abstract: Mount for a piston-cylinder assembly, especially for a vibration damper, where one end of the piston rod is immovably connected to upper and lower flanges of the mount. A radial, ring-shaped space is formed at least at the lower support flange of the mount, and an elastomeric body is clamped between the lower support flange and the upper support flange, this body being connected to the component to be damped. A support body, which is connected immovably to the support flange and immovably to the piston rod, is provided in the ring-shaped space to absorb the support forces acting on the support flange.

Abstract: A suspension component connection assembly in the form of a leaf spring connection assembly is shown to include a leaf spring having a leaf spring eye with a grooved portion positioned intermediate its axial ends. A sleeveless bushing is installed within the leaf spring eye and includes a ribbed portion designed to fit within the grooved portion. Centering and retention consistency is achieved thereby.

Abstract: A vacuum holddown device for retaining a workpiece at a desired machining location on a horizontal work support surface, including a plurality of cylindrical actuators arranged in cavities contained in the upper surface of the work support. E ach of the actuators includes a vertically displaceable sensor member having a rounded surface that protrudes upwardly above the upper work support surface for engagement by the workpiece. When the sensor is depressed by the workpiece, a vacuum chamber in the actuator applies suction to the workpiece to maintain the same in the machining location. The actuators are selectively operable between flush and elevated positions relative to the work support. Attachment members may be selectively connected with the cylindrical actuators.

Abstract: A clamping element for clamping workpieces in a flexible position. Two slides (2 and 3) guided in parallel slide in cutouts (4 and 5), which are provided in a housing (1). The force for moving the slides is introduced via plunger pistons (9 and 10) by these pistons acting on the front sides (17 and 18) of the slides, whereby a short lever arm is formed between the introduction of the force and the action of the force. A piston (22), which is provided at its head with a wedge (23), is introduced into the housing (1) at right angles to the plane of movement of the slides. This wedge is guided in recesses (6), which are associated with the slides. Due to the piston (22) being pulled down, its wedge is jammed in the recesses (6) of the slides (2 and 3) and the wedge pushes the slides into the cutouts (4 and 5) and fixes same in a self-locking manner.

Abstract: A clamp (1) comprising: two opposed first clamping surfaces (5), two opposed second clamping surfaces (6) disposed perpendicularly to the planes of the first clamping surfaces, two opposed bearing surfaces (4) spaced apart and located on the longitudinal axes of the first clamping surfaces and disposed at an angle from the first clamping surfaces, and two rigid bearing points, one of said bearing points located to align when in use adjacent to one of the bearing surfaces and the other bearing point located to align when in use adjacent to the other bearing surface, and means (20) for imparting a longitudinal force such that the bearing surfaces are urged against the bearing points.

Abstract: A clamp used in the manufacture of cabinets to aid in the blind fastening of finished drawer fronts to drawer boxes. The clamp is comprised of an inverted U shaped channel(6) of a predetermined length. The top section(6b) of the channel is sufficiently thin to fit in the desired spaces between drawer fronts or other finished cabinet members commonly referred to as “reveals”. Further, the top section is substantially flat on the exterior surface. The channel is of sufficient width from side to side to contain the finished drawer front (17), the front of the drawer box (16) and the rigid plate (13) and necessary play. A shaft (7) is passes through side (6a) of the channel and a rigid plate (13) is attached by pivotable means to the end of the shaft projecting into the channel. The shaft and plate are advanced toward the opposite side (6c) of the channel by threaded, friction or cam action means.

Abstract: In an image forming apparatus in which a plurality of feeders can be added, a main body driving portion is provided in an apparatus main body and a drive feeder having a driving portion is provided among the plurality of feeders. The main body side driving portion drives an adjacent feeder, and the driving portion of the drive feeder drives the drive feeder and a feeder adjacent to the drive feeder. In the image forming apparatus, it is unnecessary to provide a dedicated driving portion in an additional feeder, it is also unnecessary to supply a driving force to the additional feeder from the apparatus main body. Therefore, no limitation is required of the additional feeder, and cost increase for an entire product can be prevented.

Abstract: A handling device is proposed, in particular for handling boards and foils, with a number of suction grippers located in a plane. A suction plate (10) is provided which is made of a porous material or sintered material and a suction pressure can be applied to said suction plate, where said suction plate is equipped with openings (19) permitting passage of the suction grippers (18). In addition, positioning means (23) are provided so that in a first position setting, the suction grippers (18) extend past the suction surface (15) of the suction plate (10) and so that in a second position setting, the suction grippers (18) are set back into the openings (19) in such a manner that they no longer extend past the suction surface (15) of the suction plate (10).

Abstract: According to some embodiments of the invention, a method for separating sheets is provided. The method comprises positioning onto a stack of sheets grippers having suction cups attached to vertical rods, then applying vacuum to the suction cups, and while maintaining the vacuum, raising the rods to lift one or more of sheets and then vertically moving the rods up and down according to a predefined motion scheme.

Abstract: A high capacity document sheet processor combines significant speed and efficiency enhancing improvements in existing approaches to stack feeding particularly in the stack loading, feeding and singulating functions with novel operational arrangements adaptable to a universal paper handling and envelope inserting system.

Abstract: A game suited for children from five years to adulthood. Game apparatus is spider or web shaped electronic device. having a grounding stake. Included are 25 foot spider or web-like attachments, having a corresponding colored lights thereon disposed. A proximity sensor monitors a specified perimeter triggering a signal light and/or buzzer, and, alas, cause for elimination. In play, the game involves two ball tossers who attempt to hit the other participating players with web-like round balls, each tosser having five chances to do so. When a player is hit, that player is deemed “snarled,” and ousted. Players are “snarled” by crossing a perimeter defined by a pre-set proximity sensor. The tosser may replace the “snarled” player. The last remaining un-“snarled” player wins. Other rules are contemplated.

Abstract: The way i look at my invention of an external jack for the seeing impared is simple. The gaming machines all ready have sound in one form or another, wether it is a bell for a jack pot or it is a newer machine with actual words coming out of speakers mounted on the machine. What i am suggesting is the engineers that design the games add verbal sounds to tell the seeing impared what is happening through the aid of an external jack on the machine in which they (the customer) would plug in the headset. In short it allows the seeing impared the enjoyment of playing any machine instead of being limited to just slot machine.

Abstract: A golf board game apparatus comprised of a game board depicting a multiple of golf links each of which has a tee area, a fairway area, and a green area, and some of which have bush and hazards; two different decks of specialty cards which, depending on where the player is on the game board, can affect the number of strokes the player counts, and one of which can also affect the player's position on the game board, one standard six sided numbered die; one special six sided die with one of each of the numbers 1, 2, 3 marked on one of its faces, and one of those numbers marked on each of its remaining faces; and a second special six sided die with one of each of the words and phrases “Fairway”, “Rough”, “Sand”, “Out of Bounds”, marked on one of its faces, and one of those words or phrase marked on each of its remaining faces.

Abstract: A lottery ticket having a first play area including individual play regions each of which contains a player-identification symbol, a prize defeating symbol or a neutral and a second play area which is associated with the first play area and which at least in part determines whether a prize has been won.

Abstract: The STAR PLAYING CARDS were designed for a New Appearance and to change the way conventional Card Games are played resulting in stimulating interest and excitment. They consist of New Celestial Bodies suits each being a different Color. The Suits are named: Stars, Blue Color; Moons, Red color; Novas, Green Color; and Clouds, Gold Color. There are four “X” Cards in each Deck and each is a different Color to match each Suit. Both the Facesides and Backsides are totally New Designs. The Characters are alpha-numeric with 8 Numbers “2” thru “9” and 6 Letters “E” thru “A” and “X”. Total Card quantity in each deck is 56. The Facesides display a complete Circle Run showing how the Letters join the Numbers and the rank of each Character. A large Suit Symbol and Character is displayed at the center of each Card for easier Card recognition. The Backsides and the “X” Cards' Facesides show an Eclipse Design of all four Suit Symbols.

Abstract: An entrapment device for entrapping projectile or flying objects employed in a game, such as flying discs employed in the game of disc golf, comprises an entrapment frame assembly including a top basket support and a bottom basket support. The entrapment device comprises a net attachable to the top basket support and having an entrapment zone portion adapted to absorb kinetic energy from the projectile or flying object to cause the projectile or flying object to drop into and be entrapped in the bottom basket support.

Abstract: A seal and bearing assembly for use in rotating machinery of the type having a rotor which turns within a stationary housing. The rotor and housing define a seal cavity therein in which the seal and bearing assembly is positioned. The assembly comprises a first bearing race adapted for engagement with a rotating surface on the rotor or a stationary surface, a second race adapted for engagement with the other of the rotating or stationary surfaces, and a plurality of bearing elements disposed between the first and second races. A bearing cage may be used which defines a plurality of bearing openings therein disposed between the first and second races, wherein the bearing elements are disposed in the bearing openings. Preferably, the bearing elements are rollers.

Abstract: A finger seal for use between a housing and a combustor liner to inhibit air passage therebetween. The finger seal has at least two annular diaphragm members partitioned into a generally continuous inner diameter portion and a segmented outer diameter portion. The segments are finger elements spaced uniformly apart forming gaps therebetween and extend radially outward terminating in a foot portion. A keyhole is formed at the terminus end of the gaps to reduce fatigue and stress of the finger elements. The diaphragm members are laminated together, oriented such that adjacent fingers of one laminate block the gaps of the other, and inserted between a pair of spacers and endplates to be attached at their inner diameter portion. The finger seal is attached circumferentially around the housing and assembled into the combustor liner with the foot portion sealing against the combustor liner interior wall.

Abstract: A drive mechanism includes a housing, a shaft, and a face seal system. The shaft is mounted within the housing and is capable of being rotatably driven. The face seal system is positioned intermediate the housing and the shaft, the face seal system being configured for promoting at least one of a substantially constant load versus deflection curve and a substantially flat loading curve with respect to wear thereof.

Abstract: A shaft sealing device 50 may comprise a first lip 51 and a second lip 55 that contact a circumferential surface 8a of a drive shaft 8. The first lip 51 may include a movable portion (bendable portion) 53 that extends from a fixed portion 52. A plurality of concave portions (recesses) 54 may be defined around the outer circumferential surface of the movable portion 53. Thin portions 59a are defined corresponding to the concave portions 54. Thick portions 59b are defined adjacent to the thin portions 59a and are preferably thicker than the thin portions 59a. Because of the effect of concave portions 54, the stress of the first lip 51 is reduced when the shaft sealing device 50 is disposed around the drive shaft 8. In addition, because the thin portions 59a and thick portions 59b are intermittently disposed in the circumferential direction on the first lip 51, the pressure of the refrigerant gas within the crank chamber 9 acts upon the space 58.

Abstract: A sealing assembly for sealing a cavity. The sealing assembly includes a sleeve and a molded skirt. A cable is threaded through the sleeve and the cable and sealing assembly are inserted into the cavity. The sealing assembly skirt has a sealing surface that has the same shape as the interior surface of the cavity. This reduces the likelihood of the skirt wrinkling and creating leak paths when it is in sealing contact with the interior surface of the cavity. One preferred embodiment of the sealing assembly can be used to seal an electrical connector.